geography

images

methane

ames research center

arc

color

haze

jpl

methane gas

11 media by topic ∙ page 1 of 1
[Sustainability 2] 412-DSP-2-ManureDigesters_011.jpg

[Sustainability 2] 412-DSP-2-ManureDigesters_011.jpg

The original digital file had the following descriptive metadata embedded in its header: Description: Methane gas produced by microbes from manure is burned to pre heat manure slurry as it is fed into reactor... More

Range : 9.1 million miles (5.7 million miles) P-29478C These two images pictures of Uranus, one in true color and the other in false color, were shot by Voyager 2's narrow angle camera. The picture at left has been processed to show Uranus as the human eye would see from the vantage point of the spacecraft. The image is a composite of shots taken through blue, green, and orange filters. The darker shadings on the upper right of the disk correspond to day-night boundaries on the planet. Beyond this boundary lies the hidden northern hemisphere of Uranus, which currently remains in total darkness as the planet rotates. The blue-green color results from the aborption of red light by methane gas in Uranus' deep, cold, and remarkably clear atmosphere. The picture at right uses false color and extreme contrast to bring out subtle details in the polar region of Uranus. Images obtained through ultraviolet, violet, and orange filters were respectively converted to the same blue, green, and red colors used to produce the picture at left. The very slight contrasts visible in true color are greatly exaggerated here. In this false colr picture, Uranus reveals a dark polar hood surrounded by aseries of progressively lighter concentric bands. One possible explanation is that a brownish haze or smog, concentrated around the pole, is arranged into bands of zonal motions of the upper atmosphere. Several artifacts of the optics and processing are visible. The occasional donut shapes are shadows cast by dust in the camera optics;the processing needed to bring ot faint features also bring out camera blemishes. in addition, the bright pink strip at the lower edge of the planets limb is an artifact of the image enhancement. In fact, the limb is dark and uniform in color around the planet. ARC-1986-AC86-7009

Range : 9.1 million miles (5.7 million miles) P-29478C These two image...

Range : 9.1 million miles (5.7 million miles) P-29478C These two images pictures of Uranus, one in true color and the other in false color, were shot by Voyager 2's narrow angle camera. The picture at left has... More

Range : 2.7 million miles (1.7 million miles) P-29497C Tis Voyager 2, false color composite of Uranus demonstrates the usefulness of special filters in the Voyager cameras for revealing the presence of high altitude hazes in Uranus' atmosphere. The picture is a composite of images obtained through the single orange and two methane filters of Voyager's wide angle camera. Orange, short wavelength and long wavelength methane images are displayed, retrospectively, as blue, green, and orange. The pink area centered on the pole is due to the presence of hazes high in the atmosphere that reflect the light before it has traversed a long enough path through the atmosphere to suffer absorbtion by methane gas. The bluest region at mid-latitude represent the most haze free regions on Uranus, thus, deeper cloud levels can be detected in these areas. ARC-1986-AC86-7014

Range : 2.7 million miles (1.7 million miles) P-29497C Tis Voyager 2, ...

Range : 2.7 million miles (1.7 million miles) P-29497C Tis Voyager 2, false color composite of Uranus demonstrates the usefulness of special filters in the Voyager cameras for revealing the presence of high alt... More

Neptune False Color Image of Haze

Neptune False Color Image of Haze

Description This false color photograph of Neptune was made from Voyager 2 images taken through three filters: blue, green, and a filter that passes light at a wavelength that is absorbed by methane gas. Thus, ... More

Range : 5.4 million km (3.3 million miles) Features as small as 100 km (62 miles) across can be seen in this color image of Neptune's satellite Triton, photographed by Voyager 2. Triton's overall pinkish color may be due to reddish materials produced by irradiation of methane gas and ice on the satellite. The dark areas near the top of the image seem to be part of a belt of dark markings observed near Trition's equator at different longitudes. Generally, darker areas on Triton appear to be somewhat redder in color than brighter areas. The central longitude in the image is 123 degrees. Here the south pole is at about 6 o'clock, approximately 1/6th of the way up from the bottom. The color image was made from three black-and-white frames, taken through clear, violet and green filters. ARC-1989-AC89-7011

Range : 5.4 million km (3.3 million miles) Features as small as 100 k...

Range : 5.4 million km (3.3 million miles) Features as small as 100 km (62 miles) across can be seen in this color image of Neptune's satellite Triton, photographed by Voyager 2. Triton's overall pinkish colo... More

P-34615 These three color images of Triton were taken at three different orbital longitudes to show different faces of the neptune moon. the overall pinkish cast of the images may be due to the presence of reddish material on Triton produced by irradiation of methane gas and ice on Triton. In these pictures the south pole is at roughly 6 o'clock, about 1/6th of the way from the bottom. Near the top of the left on Triton's equator are several large dark spots that are probably suface markings. These markings rotate with a 5.88-day orbital period of Triton. The left image has a central longitude 288 degrees, the center at 351 degrees ( nearly the hemisphere that will be seen at Voyager's closest approach to Triton), and the right image is at 35 degrees logitude. ARC-1989-AC89-7002

P-34615 These three color images of Triton were taken at three differe...

P-34615 These three color images of Triton were taken at three different orbital longitudes to show different faces of the neptune moon. the overall pinkish cast of the images may be due to the presence of red... More

P-34705 This false-color photograph of Neptune was made from Voyager 2 images taken through three filters: blue, green, and a filter that passes light at a wavelength that is absorbed by methane gas. Thus, regions that appear white or bright red are those that reflect sunlight before it passes through a large quantity of methane. The image reveals the presence of a ubiquitous haze that covers Neptune in a semitransparent layer. Near the center of the disk, sunlight passes through the haze and deeper into the atmosphere, where some wavelenghths are absorbed by methane gas, causing the center to appear less red. Near the edge of the planet, the haze scatters sunlight at a higher altitude, above most of the methane, causing the bright red edge around the planet. By measuring haze brightness at several wavelengths, scientists are able to estimate the thickness of the haze and its ability to scatter sunlight. The image is among the last of the full-disk photos that Voyager 2 took before beginning its endless journey into interstellar space. ARC-1989-AC89-7036

P-34705 This false-color photograph of Neptune was made from Voyager 2...

P-34705 This false-color photograph of Neptune was made from Voyager 2 images taken through three filters: blue, green, and a filter that passes light at a wavelength that is absorbed by methane gas. Thus, regi... More

Neptune False Color Image of Haze

Neptune False Color Image of Haze

This false color photograph of Neptune was made from NASA's Voyager 2 images taken through three filters: blue, green, and a filter that passes light at a wavelength that is absorbed by methane gas. Thus, regio... More

[Sustainability 2] 412-DSP-2-Sustainability_128.jpg

[Sustainability 2] 412-DSP-2-Sustainability_128.jpg

The original digital file had the following descriptive metadata embedded in its header: Description: Methane gas produced by microbes from manure is burned to pre heat manure slurry as it is fed into reactor... More

[Sustainability 2] 412-DSP-2-ManureDigesters_008.jpg

[Sustainability 2] 412-DSP-2-ManureDigesters_008.jpg

The original digital file had the following descriptive metadata embedded in its header: Description: Methane gas passes through desiccant on it's way to holding tanks. USEPA photo by Eric Vance Date Picture... More

[Sustainability 2] 412-DSP-2-Sustainability_125.jpg

[Sustainability 2] 412-DSP-2-Sustainability_125.jpg

The original digital file had the following descriptive metadata embedded in its header: Description: Methane gas passes through desiccant on it's way to holding tanks. USEPA photo by Eric Vance Date Picture... More